MX2022002542A - Method and apparatus for adaptive loop filtering at picture and sub-picture boundary in video coding. - Google Patents

Method and apparatus for adaptive loop filtering at picture and sub-picture boundary in video coding.

Info

Publication number
MX2022002542A
MX2022002542A MX2022002542A MX2022002542A MX2022002542A MX 2022002542 A MX2022002542 A MX 2022002542A MX 2022002542 A MX2022002542 A MX 2022002542A MX 2022002542 A MX2022002542 A MX 2022002542A MX 2022002542 A MX2022002542 A MX 2022002542A
Authority
MX
Mexico
Prior art keywords
boundary
picture
sub
alf
video coding
Prior art date
Application number
MX2022002542A
Other languages
Spanish (es)
Inventor
Tzu-Der Chuang
Ching-Yeh Chen
Lulin Chen
Chen-Yen Lai
Original Assignee
Hfi Innovation Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hfi Innovation Inc filed Critical Hfi Innovation Inc
Publication of MX2022002542A publication Critical patent/MX2022002542A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/174—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/182—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Methods and apparatus for video coding using Adaptive Loop Filter (ALF) processing are disclosed. According to one method, the ALF virtual boundary processing is always applied to the bottom CTU row regardless whether the bottom CTU row is for a picture or a sub-picture. In another method, the ALF padding process is unified for different boundary types belonging to the target boundary belongs to a boundary-type group comprising two or more of slice boundary, tile boundary, VR360 face boundary, and sub-picture boundary. In yet another method, the ALF VB processing has a fixed priority for a corner region that both horizontal and vertical virtual boundaries can be applied.
MX2022002542A 2019-09-05 2020-09-02 Method and apparatus for adaptive loop filtering at picture and sub-picture boundary in video coding. MX2022002542A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962896032P 2019-09-05 2019-09-05
US201962896631P 2019-09-06 2019-09-06
US201962903043P 2019-09-20 2019-09-20
PCT/US2020/049015 WO2021046096A1 (en) 2019-09-05 2020-09-02 Method and apparatus for adaptive loop filtering at picture and sub-picture boundary in video coding

Publications (1)

Publication Number Publication Date
MX2022002542A true MX2022002542A (en) 2022-05-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022002542A MX2022002542A (en) 2019-09-05 2020-09-02 Method and apparatus for adaptive loop filtering at picture and sub-picture boundary in video coding.

Country Status (7)

Country Link
US (1) US20220303587A1 (en)
EP (1) EP4022914A4 (en)
KR (1) KR20220051403A (en)
CN (1) CN114731419A (en)
MX (1) MX2022002542A (en)
TW (1) TWI769516B (en)
WO (1) WO2021046096A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112534810A (en) * 2018-08-06 2021-03-19 夏普株式会社 Moving image decoding device and moving image encoding device
CN114424539A (en) 2019-06-14 2022-04-29 北京字节跳动网络技术有限公司 Processing video unit boundaries and virtual boundaries
CN113994671B (en) 2019-06-14 2024-05-10 北京字节跳动网络技术有限公司 Processing video cell boundaries and virtual boundaries based on color formats
CN117478878A (en) 2019-07-09 2024-01-30 北京字节跳动网络技术有限公司 Sample determination for adaptive loop filtering
JP7291845B2 (en) 2019-07-11 2023-06-15 北京字節跳動網絡技術有限公司 Sample padding in adaptive loop filtering
WO2021008546A1 (en) 2019-07-15 2021-01-21 Beijing Bytedance Network Technology Co., Ltd. Accessing samples across video unit boundaries in adaptive loop filtering
KR20220061980A (en) 2019-09-22 2022-05-13 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 Padding process in adaptive loop filtering
KR20220063177A (en) * 2019-09-27 2022-05-17 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 Adaptive loop filtering between different video units
JP7454042B2 (en) 2019-10-10 2024-03-21 北京字節跳動網絡技術有限公司 Padding process at unavailable sample positions in adaptive loop filtering
WO2023249404A1 (en) * 2022-06-21 2023-12-28 엘지전자 주식회사 Image encoding/decoding method, bitstream transmission method, and recording medium storing bitstream

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9124895B2 (en) * 2011-11-04 2015-09-01 Qualcomm Incorporated Video coding with network abstraction layer units that include multiple encoded picture partitions
US8983218B2 (en) * 2012-04-11 2015-03-17 Texas Instruments Incorporated Virtual boundary processing simplification for adaptive loop filtering (ALF) in video coding
US10136144B2 (en) * 2012-05-21 2018-11-20 Mediatek Singapore Pte. Ltd. Method and apparatus of inter-layer filtering for scalable video coding
DE102014107843B3 (en) * 2014-06-04 2015-11-26 Thyssenkrupp Presta Teccenter Ag Media transport in rotor shaft
WO2021008546A1 (en) * 2019-07-15 2021-01-21 Beijing Bytedance Network Technology Co., Ltd. Accessing samples across video unit boundaries in adaptive loop filtering

Also Published As

Publication number Publication date
TWI769516B (en) 2022-07-01
US20220303587A1 (en) 2022-09-22
CN114731419A (en) 2022-07-08
EP4022914A4 (en) 2023-09-06
TW202116073A (en) 2021-04-16
KR20220051403A (en) 2022-04-26
EP4022914A1 (en) 2022-07-06
WO2021046096A1 (en) 2021-03-11

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